1. AQA GCSE (8525) SLR1 - 3.4 CPU components
About this video
AQA Specification Reference - Section 3.4
This video takes the lid off a central processing unit and explain the key components including the registers, the control unit and the cache.
Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.
00:00 CPU components
00:06 Intro
00:12 CPU components
00:42 Arithmetic logic unit (ALU)
00:53 Control unit (CU)
01:09 Cache
01:34 Clock
01:47 Registers
02:07 Buses
02:27 Recap
03:11 Going beyond the GCSE specification
03:29 Registers in more depth
05:08 Outro
Last updated: 04.09.25
